Need MS VDA license for iscsi boot?

[soongin]

Hello,

Currently I'm trying to deploy iSCSI boot for all our PCs in work environment.
It's all same PCs and have Windows 7 Professional OEM license.
(iPXE and linux IET backend.)

One of my employee said we may need VDA license but I think we don't cause it's not virtual infrastructure.

I want to clarify this licensing issue before we go to next step.
Any comment or URL about this issue will be greatly appreciated.

Thanks in advance.

Daniel